I've found yet another spinning obsession: pure tussah silk!
The way I spin them is into soft singles. On the left is my latest example, it's called 'purple steel' and has a beautiful lustre.
I had a few small skeins as well and they sold really quickly in my etsy shop.
Another thing I've been spinning (and I have been spinning a lot recently) is a luxurious fibre blend of 70% Merino and 30% Silk. It has all the advantages of a soft merino wool, but at the same time has the elegant drape and gorgeous shine of pure silk.
Here is an example of this fibre blend: http://www.etsy.com/view_listing.php?listing_id=6960600
Overall I am really re-discovering the single ply - the colours just remain so beautifully in this ply...